| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 14h 43m 39.44s [1] |
| Declination | −35° 10′ 25.2″ [1] |
| Apparent magnitude (V) | +4.06 [2] |
| Characteristics | |
| Spectral type | K3III [2] |
| U−B color index | +1.53 |
| B−V color index | +1.356 [2] |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −38 km/s |
| Proper motion (μ) |
RA: -61.46 ± 0.15
[1]
mas/
yr Dec.: -176.84 ± 0.14 [1] mas/ yr |
| Parallax (π) | 15.57 ± 0.16 mas [1] |
| Distance | 209 ± 2
ly (64.2 ± 0.7 pc) |
| Absolute magnitude (MV) | –0.20 [2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 129456, also known by its Bayer designation c1 Centauri (c1 Cen), is a star in the constellation Centaurus. c¹ Centauri is an orange K-type giant with an apparent magnitude of +4.06. It is approximately 209 light years from Earth.
References
- ^ a b c d e van Leeuwen, Floor (13 August 2007). "Validation of the new Hipparcos reduction". Astronomy & Astrophysics. 474 (2): 653–664. arXiv: 0708.1752. Bibcode: 2007A&A...474..653V. doi: 10.1051/0004-6361:20078357. eISSN 1432-0746. ISSN 0004-6361. Vizier catalog entry
- ^ a b c d Jasniewicz, G.; et al. (February 1999), "Late-type giants with infrared excess. I. Lithium abundances", Astronomy and Astrophysics, 342: 831–838, Bibcode: 1999A&A...342..831J
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